package com.itheima.controller;

import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.User;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/user")
public class UserController {


    @RequestMapping("/getUserName")
    public Result getUserName(){
//        Spring security完成认证后，会将当前用户信息保存到框架提供的上下文对象中
        User user = (User) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
        System.out.println(user);
        if(user!=null){
            String username = user.getUsername();
            return new  Result(true,MessageConstant.GET_USERNAME_SUCCESS,username);
        }
            return new Result(false,null);
    }
}
